Matrix factorisations and permutation branes

Ilka Brunner; Matthias R. Gaberdiel

Matrix factorisations and permutation branes

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arxiv hep-th/0503207 v3 pith:F5S2B2AX submitted 2005-03-26 hep-th

Ilka Brunner , Matthias R. Gaberdiel This is my paper

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keywords boundaryd2-branedescriptionfactorisationsgepnermatrixmodelspermutation

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The description of B-type D-branes on a tensor product of two N=2 minimal models in terms of matrix factorisations is related to the boundary state description in conformal field theory. As an application we show that the D0- and D2-brane for a number of Gepner models are described by permutation boundary states. In some cases (including the quintic) the images of the D2-brane under the Gepner monodromy generate the full charge lattice.

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